EP0665333B1 - Method and device for steering a surface compacting machine - Google Patents

Method and device for steering a surface compacting machine Download PDF

Info

Publication number
EP0665333B1
EP0665333B1 EP94850199A EP94850199A EP0665333B1 EP 0665333 B1 EP0665333 B1 EP 0665333B1 EP 94850199 A EP94850199 A EP 94850199A EP 94850199 A EP94850199 A EP 94850199A EP 0665333 B1 EP0665333 B1 EP 0665333B1
Authority
EP
European Patent Office
Prior art keywords
steering
activated
control valve
systems
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94850199A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0665333A1 (en
Inventor
Mats Björsne
Bo Svensson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svedala Compaction Equipment AB
Original Assignee
Svedala Compaction Equipment AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svedala Compaction Equipment AB filed Critical Svedala Compaction Equipment AB
Publication of EP0665333A1 publication Critical patent/EP0665333A1/en
Application granted granted Critical
Publication of EP0665333B1 publication Critical patent/EP0665333B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S180/00—Motor vehicles
    • Y10S180/90—Argicultural-type tractors

Definitions

  • the invention relates to steering systems for tandem-type surface compacting machines equipped with two independent steering modes, i.e. a system in which either the leading or trailing roller can be individually steered, as previously known through US-A-3,868,194 and US-A-4,043,422, or a system permitting frame steering or individual steering of one of the rollers as shown in the German patent DD-A-229 449.
  • Rollers of these types are usually steered via a steering wheel-activated hydraulic control valve which governs the flow of fluid to steering cylinders. Actuating of a switching valve permits selection of the desired steering cylinders, either the cylinders actuating the leading roller or the trailing roller or, in the second instance, the cylinders actuating the frame steering or one of the rollers.
  • the object of the invention is to achieve simultaneous control of both systems, one by means of a steering wheel-activated control valve and the other by means of a joystick acting on an electrically operated control valve, arranged, via switching valves which can be set with an electric switch, in such a way that the operator can instantly select the steering system whose operation with the steering wheel or joystick he deems most appropriate at any given moment.
  • the steering wheel-activated steering valve has a capacity, appropriate to the roller size in question, by which the steering speed is affected by the speed with which the wheel is turned, and the joystick-activated steering valve is equipped with a throttle providing slower, smoother steering.
  • a frame-steered surface compacting machine is normally steered by having the steering wheel, via its control valve, actuate frame steering, in which the rollers track in tandem because of the frame steering. If a larger effective rolling width is desired, i.e. when the rollers are arranged in echelon, individual steering of one of the rollers can be actuated with the joystick so the roller rotates. When this occurs with the vehicle in motion, the surface compacting machine turns.
  • the steering wheel which acts on the frame steering, is then rotated to compensate for the turn and maintain a straight course, and the rollers are laterally shifted in one optional direction or the other.
  • the steering valve activated by the joystick can also be used for steering the surface compacting machine during normal operation and then acts on the individually steerable roller.
  • the steering geometry is then affected so the rollers do not track in the same way as in frame steering. This is a major advantage in various tasks, e.g. when the machine closely skirts a curbstone or when a cutting tool is mounted on one of the roller
  • the machine operator can instantly select the steering system most appropriate for activation with the steering wheel or joystick at any given moment.
  • FIG. 1 shows a side view of a tandem surface compacting machine.
  • FIG. 2 is a horizontal view of FIG. 1 showing a frame steering joint, an individual steering joint on one of the rollers and steering cylinders.
  • FIG. 3 is a schematic diagram of the hydraulics in one embodiment of the invention.
  • the trailing frame section 1 is connected to the leading frame section 2 by the frame steering link 3.
  • the surface compacting machine's trailing roller 4a is carried in the roller frame 5a which is rotatingly carried in the bearing 6 in the trailing frame section 1.
  • the leading roller 4b is carried in the roller frame 5b which is permanently attached to the leading frame section 2.
  • FIG. 2 is shown the steering cylinders 7 which achieve frame steering via the frame articulation link 3 and the steering cylinder 8, which acts on the roller frame 5a which is individually steerable around the bearing 6, with the roller 4a.
  • FIG. 3 is the schematic diagram of the steering system's hydraulics in which the hydraulic pump 9, equipped with a load-sensing valve 10 via the pressure line CF, is connected to the steering wheel-activated rotary control valve 11 and the joystick-activated electric control valve 12. Before the electric control valve 12 there is an adjustable throttle valve 13 with which an appropriate flow of fluid can be set.
  • the control valve 11 only supplies a flow alternately to the lines R and L when the steering wheel is turned to the right and left respectively. The flow is then proportional to the steering wheel's turning speed. Flow stops when the steering wheel stops turning.
  • the pressure-controlled check valves 16 permit a return flow of oil from the non-pressurized part of the steering cylinders 8.
  • the arrangement of the frame steering system and roller steering system with the two overflow valves 18 and the two check valves 19 is intended to prevent overloading of the steering system if an extremely heavy external load should occur, something which could happen if the rollers struck some solid object such as a curbstone etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Road Paving Machines (AREA)
  • Steering Controls (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
EP94850199A 1994-01-31 1994-11-04 Method and device for steering a surface compacting machine Expired - Lifetime EP0665333B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9400290A SE502269C2 (sv) 1994-01-31 1994-01-31 Styrsystem för vägvältar
SE9400290 1994-01-31

Publications (2)

Publication Number Publication Date
EP0665333A1 EP0665333A1 (en) 1995-08-02
EP0665333B1 true EP0665333B1 (en) 1998-03-04

Family

ID=20392740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94850199A Expired - Lifetime EP0665333B1 (en) 1994-01-31 1994-11-04 Method and device for steering a surface compacting machine

Country Status (6)

Country Link
US (1) US5562175A (es)
EP (1) EP0665333B1 (es)
JP (1) JP2920599B2 (es)
DE (2) DE665333T1 (es)
ES (1) ES2076915T3 (es)
SE (1) SE502269C2 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5908081A (en) * 1996-05-30 1999-06-01 Case Corporation Steering control system for articulated vehicle
DE19813475C1 (de) * 1998-03-26 1999-08-05 Vibromax Bodenverdichtungsmasc Bodenverdichtungsmaschine mit mindestens einer Walzeneinheit
KR20000001834A (ko) * 1998-06-15 2000-01-15 토니헬샴 휠로우더의 조향장치
JP3725769B2 (ja) * 1999-10-28 2005-12-14 酒井重工業株式会社 ハンドガイドローラ
DE10065556B4 (de) * 2000-12-28 2005-07-07 Sauer-Danfoss Holding Aps Lenksystem und Verfahren zum Lenken eines Fahrzeugs
JP2002266311A (ja) * 2001-03-09 2002-09-18 Sakai Heavy Ind Ltd 転圧機械
US20060034660A1 (en) * 2004-08-10 2006-02-16 Satzler Ronald L Belted asphalt compactor
US7886864B2 (en) * 2004-09-23 2011-02-15 Caterpillar Paving Products Inc Oversteering feedback response for vehicle having compound steering system
US7334658B2 (en) 2004-12-23 2008-02-26 Caterpillar Inc. Steering system with joystick mounted controls
EP2076419B1 (en) * 2006-09-29 2018-11-07 Volvo Construction Equipment AB Propulsion and steering system for a road milling machine
US7694772B1 (en) * 2007-08-03 2010-04-13 M-B Companies Inc. Forward cab articulated tractor
US8376655B2 (en) * 2008-10-03 2013-02-19 Caterpillar Paving Products Inc. Compactor with smooth hose routing
US7857544B2 (en) * 2008-10-03 2010-12-28 Caterpillar Inc Extension plate for a compactor
JP5228018B2 (ja) * 2010-09-24 2013-07-03 順一 濱田 自走式グラウンドローラー
WO2013102073A1 (en) 2011-12-29 2013-07-04 Clark Equipment Company Electronic tag along
US9550522B2 (en) 2015-02-19 2017-01-24 Caterpillar Paving Products Inc. Compactor turning speed limiter
SE541566C2 (en) 2017-05-04 2019-11-05 Scania Cv Ab Method and system for controlling steering of a vehicle
JP6846375B2 (ja) * 2018-03-08 2021-03-24 日立建機株式会社 転圧機械
DE102019004659A1 (de) * 2019-07-02 2021-01-07 Bomag Gmbh Armatursicherung für hydraulikschlauchkupplungen, baumaschine und verfahren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856102A (en) * 1973-07-11 1974-12-24 Harnischfeger Corp Electro-hydraulic steering system for vehicle having steerable front and rear ground wheels
US3868194A (en) * 1974-02-06 1975-02-25 Iowa Mfg Co Expandable articulated tandem roller
US4043422A (en) * 1976-11-19 1977-08-23 Raygo, Inc. Steering system for articulated vehicles
US4109742A (en) * 1977-02-24 1978-08-29 Iowa Manufacturing Company Steering and width controls for expandable tandem rollers
DD229449B5 (de) * 1984-12-07 1999-09-09 Dynapac Heavy Equipment Ab Selbstlaufende strassenwalze mit hintereinander angeordneten bandagen
JPH0345471A (ja) * 1989-07-14 1991-02-27 Komatsu Ltd 全油圧式ステアリングシステムのハンドル位置補正装置

Also Published As

Publication number Publication date
DE69408823D1 (de) 1998-04-09
JPH07216818A (ja) 1995-08-15
DE665333T1 (de) 1996-09-12
JP2920599B2 (ja) 1999-07-19
SE9400290D0 (sv) 1994-01-31
ES2076915T1 (es) 1995-11-16
SE502269C2 (sv) 1995-09-25
EP0665333A1 (en) 1995-08-02
US5562175A (en) 1996-10-08
DE69408823T2 (de) 1998-07-16
SE9400290L (sv) 1995-08-01
ES2076915T3 (es) 1998-05-16

Similar Documents

Publication Publication Date Title
EP0665333B1 (en) Method and device for steering a surface compacting machine
US5489005A (en) Electro-hydraulic steering system
AU603824B2 (en) Steering control system
US4320810A (en) Vehicle with improved steering system device
US6761234B1 (en) Skid steer vehicle with steerable suspension
US6374940B1 (en) Steering device for self-propelled working machines
GB2102752A (en) Steering system including independently operated rear wheel steering means for a vehicle
US6655492B2 (en) Steering system and method for steering a vehicle
CA1145680A (en) Steering mechanism with drop-arm
US5230399A (en) Four-wheel steering system for vehicles
US6345932B1 (en) System for alternately operating steering and offset mechanisms of compacting vehicle
JPS6354594B2 (es)
EP0926045A2 (en) Steering system in a traveling vehicle
US6505701B2 (en) Steering system for a vehicle
CA1181014A (en) Load-responsive steering control valve
RU2098541C1 (ru) Способ управления машинами для уплотнения поверхности и устройство для его реализации
JP4331360B2 (ja) 農用作業車
KR102411623B1 (ko) 유압식 파워 스티어링 장치
JP2551181B2 (ja) 動力車両に於ける四輪操舵装置
JP3588820B2 (ja) トラクタの操向装置
JPH035504Y2 (es)
JP3271361B2 (ja) トラクタの操向制御装置
KR20220094449A (ko) 유압식 파워 스티어링 장치
JP3624524B2 (ja) 四輪操舵装置
JP3440530B2 (ja) 四輪操舵制御装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19950817

EL Fr: translation of claims filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2076915

Country of ref document: ES

Kind code of ref document: T1

ITCL It: translation for ep claims filed

Representative=s name: UFFICIO TECNICO ING. A. MANNUCCI

DET De: translation of patent claims
17Q First examination report despatched

Effective date: 19970410

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SVEDALA COMPACTION EQUIPMENT AKTIEBOLAG

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 69408823

Country of ref document: DE

Date of ref document: 19980409

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2076915

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: UFFICIO TECNICO ING. A. MANNUCCI

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20031029

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031110

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20031209

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041105

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20041104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050729

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051104

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041105

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20081103

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100601